When Zen master Fa-ch'an was dying, a squirrel screeched on the roof.It's "just this" he said, "and nothing more."

...dusty world of human affairs. (Gary Snyder)

“Mountains and waters’ is a way to refer to the totality of the process of nature. . . . The whole, with its rivers and valleys, obviously includes farms, fields, villages, cities and the (once comparatively small) dusty world of human affairs." —Gary Snyder